public class Main9
{
    public static void main(String[] args){
        int a=10;
        int b=20;
        System.out.println(a+=b);
        //a=30 b=20
        System.out.println(a-=b);
        //a=10 b=20;
        System.out.println(a*=b);
        //a=200 b=20
        System.out.println(a/=b);
        //a=10 b=20
        System.out.println(a%=b);
        //a=10 b=20
    }
}
